A centrifugal dehydration device for easily removing impurities

Abstract

The present invention discloses a centrifugal dehydration device that is convenient for removing impurities, comprising a main body bearing support, a water filter tank is arranged inside the main body bearing support, a dehydration and impurity removal mechanism is arranged at the upper end of the main body bearing support, a drying mechanism is arranged at one end of the dehydration and impurity removal mechanism, and the dehydration and impurity removal mechanism comprises a first support frame and a second support frame fixedly arranged on the top surface of the main body bearing support, and the first support frame and the second support frame are symmetrically arranged on the top surface of the main body bearing support. The present invention provides a centrifugal dehydration device that is convenient for removing impurities, and a dehydration and impurity removal mechanism is arranged at the same time. The cleaning shaft drives the cleaning roller to rotate in the middle of the external protective sleeve and the centrifugal dehydration barrel, which can avoid the shutdown of the device due to blockage while the centrifugal dehydration barrel is dehydrating, thereby effectively improving the stability of the device and avoiding blockage of the device due to accumulation of debris.

Description

Technical Field

[0001] The invention relates to the technical field of coal processing, in particular to a centrifugal dehydration device which is convenient for removing impurities. Background Art

[0002] Coal washing removes impurities (such as sand, stone, ash, etc.) from coal through hydraulic separation to improve the purity and quality of coal. Common equipment includes heavy medium coal separators and trough separators. Water washing can effectively reduce the ash and sulfur content of coal, improve the calorific value and combustion efficiency of coal, and meet environmental protection standards;

[0003] Coal dehydration is to remove the moisture from the washed coal to reduce the moisture content of the coal for easy storage, transportation and combustion. Common dehydration methods include natural air drying, mechanical dehydration (such as centrifugal dehydrator) and hot air drying. After dehydration, the coal is easier to store and burn efficiently.

[0004] Taken together, water washing removes impurities and improves quality, while dehydration reduces moisture and enhances coal combustion performance and storage and transportation efficiency. Together, they optimize the coal processing process.

[0005] For example, a centrifugal dehydration device for coal processing that is convenient for removing impurities is disclosed in Chinese Patent Publication No. (CN110404694B), which records: "It includes a main body, a protective cover, a filter cartridge, a rotating tube, a bearing and a water outlet pipe, the main body is cylindrical in shape, the protective cover covers the top of the main body, the water outlet pipe is arranged at the bottom end of the main body, the filter cartridge is arranged in the main body, the filter cartridge and the main body are coaxially arranged, the rotating tube and the filter cartridge are coaxially arranged, a connecting hole is arranged at the bottom of the main body, the bearing is located in the connecting hole, the rotating tube passes through the connecting hole, the inner ring of the bearing is installed on the rotating tube, the outer ring of the bearing is sealed and fixedly connected to the inner wall of the connecting hole, an auxiliary mechanism is arranged in the filter cartridge, a protective mechanism is arranged on the protective cover, and the protective mechanism is located in the main body. This centrifugal dehydration device for coal processing that is convenient for removing impurities improves the convenience of removing impurities in the filter cartridge through the auxiliary mechanism, and not only that, but also improves safety through the protective mechanism."

[0006] In summary, the device still has the following technical problems: the device cleans up the debris by setting up a protective mechanism, but due to the large processing volume during coal processing, it is necessary to continuously dehydrate the coal, and the device cannot achieve continuous dehydration of the coal, which will seriously affect the coal processing efficiency. At the same time, the device cannot dehydrate the coal and clean up the internal debris at the same time. During cleaning, the device still needs to be shut down for unified treatment. For this reason, it is necessary to propose a centrifugal dehydration equipment that is easy to remove impurities, so as to provide a new technical solution to solve the technical problems mentioned in the above patents. Summary of the invention

[0007] Based on this, it is necessary to provide a centrifugal dehydration equipment that is easy to remove impurities in order to solve the above-mentioned technical problems. At the same time, a dehydration and impurity removal mechanism is set up. The cleaning shaft drives the cleaning roller to rotate in the middle of the external protective sleeve and the centrifugal dehydration barrel. This can avoid the shutdown of the device due to blockage while the centrifugal dehydration barrel is dehydrating, thereby effectively improving the stability of the device and avoiding blockage of the device due to accumulation of debris.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] The invention discloses a centrifugal dehydration device which is convenient for removing impurities and is applied to dehydration and drying of coal.

[0010] The centrifugal dehydration device for removing impurities specifically comprises a main body support, a water filter tank is arranged inside the main body support, a dehydration and impurity removal mechanism is arranged at the upper end of the main body support, and a drying mechanism is arranged at one end of the dehydration and impurity removal mechanism;

[0011] The dehydration and impurity removal mechanism includes a first support frame and a second support frame fixedly arranged on the top surface of the main body bearing bracket, the first support frame and the second support frame are symmetrically arranged on the top surface of the main body bearing bracket, the interior of the first support frame is fixedly connected with a feed filter bucket, the top surface of the feed filter bucket is fixedly connected with a feed port, and a drainage hole is provided on the side of the feed port, the interior of the second support frame is fixedly connected with a discharge bucket, the bottom surface of the discharge bucket is fixedly connected with a discharge port, the surface of the feed filter bucket is fixedly connected with an external protective sleeve, and the end of the external protective sleeve away from the feed filter bucket is fixedly connected to a side of the discharge bucket close to the feed filter bucket.

[0012] As a preferred embodiment of the centrifugal dehydration equipment for removing impurities provided by the present invention, the feed water filter barrel and the discharge barrel are connected by an external protective sleeve, the side of the feed water filter barrel away from the discharge barrel is an inclined surface, the feed water filter barrel as a whole is wide at the top and narrow at the bottom, and the bottom of the external protective sleeve is in an open state.

[0013] As a preferred embodiment of the centrifugal dehydration equipment for removing impurities provided by the present invention, a centrifugal dehydration barrel is arranged inside the external protective sleeve, and sealed bearings are arranged at the connection points at both ends of the external protective sleeve and the centrifugal dehydration barrel. The outer wall of the centrifugal dehydration barrel is fixedly connected with a first external planetary gear, the top surface of the main body bearing bracket is fixedly connected with a motor bracket, the transmission end of the motor bracket is rotatably connected with a centrifugal transmission gear, the sealed bearing is meshed with the centrifugal transmission gear, and the water filter is arranged at the bottom end of the external protective sleeve and the centrifugal dehydration barrel.

[0014] As a preferred embodiment of the centrifugal dehydration equipment for removing impurities provided by the present invention, a servo motor is fixedly connected to the top surface of the main body bearing bracket, and the driving end of the servo motor is rotatably connected to the motor drive shaft, a conveying drive shaft is arranged inside the centrifugal dehydration barrel, and the two ends of the conveying drive shaft are respectively rotatably connected to the inside of the feed filter barrel and the discharge barrel, the surface of the conveying drive shaft is fixedly connected to a spiral conveyor disk, the surface of the motor drive shaft is fixedly connected to a drive pulley, the surface of the conveying drive shaft is fixedly connected to a driven pulley, and the driven pulley and the surface of the drive pulley are transmission-connected by a linkage belt.

[0015] As a preferred embodiment of the centrifugal dehydration equipment for removing impurities provided by the present invention, the inner diameter of the outer protective sleeve and the end of the centrifugal dehydration barrel close to the feed filter barrel is smaller than the inner diameter of the end close to the feed filter barrel, the spiral conveyor plate is in contact with the inner wall of the centrifugal dehydration barrel, and the spiral conveyor plate is rotatably arranged inside the centrifugal dehydration barrel.

[0016] As a preferred embodiment of the centrifugal dehydration equipment for removing impurities provided by the present invention, a cleaning transmission gear is fixedly connected to the surface of the motor drive shaft, and an inner planetary gear is rotatably connected to a side of the feed filter bucket close to the external protective sleeve. The inner planetary gear is arranged on the outer ring of the external protective sleeve, and a second outer planetary gear is fixedly connected to the surface of the inner planetary gear, and the second outer planetary gear is meshed with the cleaning transmission gear.

[0017] As a preferred embodiment of the centrifugal dehydration equipment for removing impurities provided by the present invention, the internal rotation of the external protective sleeve is connected to a cleaning shaft, the surface of the cleaning shaft is fixedly connected to a cleaning roller, the cleaning roller is arranged between the external protective sleeve and the centrifugal dehydration barrel, and the cleaning roller is in close contact with the surface of the centrifugal dehydration barrel, and the end of the internal planetary gear close to the feed filter barrel is fixedly connected to a cleaning driven gear, and the cleaning driven gear is meshed with the internal planetary gear.

[0018] As a preferred embodiment of the centrifugal dehydration equipment for removing impurities provided by the present invention, a guide groove is provided on the surface of the discharge barrel, and a sliding rod is slidably connected to the inside of the discharge barrel, one end of the sliding rod is fixedly connected to a limiting block, and the end of the sliding rod away from the limiting block is fixedly connected to an arc-shaped buffer plate, the arc-shaped buffer plate is arranged inside the discharge barrel and the arc-shaped buffer plate is slidably connected to the inside of the guide groove through a cross bar, and a return spring is sleeved on the surface of the sliding rod, and the two ends of the return spring are respectively tightly attached to the discharge barrel and the arc-shaped buffer plate.

[0019] As a preferred embodiment of the centrifugal dehydration equipment for removing impurities provided by the present invention, a side of the discharge barrel away from the external protective sleeve is fixedly connected to a hot air blower, the hot air blower is connected to the discharge barrel, a first protective net is fixedly connected to the connection between the hot air blower and the discharge barrel, a conical air pipe is fixedly connected to the inside of the discharge barrel, the conical air pipe is connected to the hot air blower and the conical air pipe is sleeved on the outside of the conveying drive shaft, the end of the conical air pipe away from the hot air blower is fixedly connected to a second protective net, and the second protective net is sleeved on the surface of the conveying drive shaft.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The centrifugal dehydration equipment provided by the present invention is convenient for removing impurities, and a dehydration and impurity removal mechanism is also provided. The cleaning shaft drives the cleaning roller to rotate in the middle of the external protective sleeve and the centrifugal dehydration barrel, which can avoid the shutdown of the device due to blockage while the centrifugal dehydration barrel is dehydrating, thereby effectively improving the stability of the device and avoiding blockage of the device due to accumulation of debris.

[0022] The centrifugal dehydration equipment provided by the present invention is convenient for removing impurities. A spiral conveyor plate is arranged for use with a centrifugal dehydration barrel. While the centrifugal dehydration barrel is centrifugally dehydrating the coal, the coal can be continuously transported forward by the rotation of the spiral conveyor plate, thereby realizing continuous transportation and continuous dehydration of the coal. Compared with the existing device, the efficiency of centrifugal dehydration of the coal can be effectively increased.

[0023] The centrifugal dehydration equipment provided by the present invention is convenient for removing impurities. By setting a drying mechanism, hot air is conveyed to the external protective sleeve and the cavity inside the centrifugal dehydration barrel through a hot air blower while the coal is being conveyed, thereby realizing auxiliary dehydration of the coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the scheme of the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the overall structure of a centrifugal dehydration device for removing impurities provided by the present invention;

[0026] Figure 2 A schematic diagram of the planar structure of a centrifugal dehydration device for removing impurities provided by the present invention, as viewed from the right;

[0027] Figure 3 Centrifugal dehydration equipment for easy removal of impurities provided by the present invention Figure 2Schematic diagram of the cross-sectional structure at AA in the middle;

[0028] Figure 4 A schematic diagram of the structure of a dehydration and impurity removal mechanism of a centrifugal dehydration device for facilitating the removal of impurities provided by the present invention;

[0029] Figure 5 A schematic diagram of the connection structure between the outer protective sleeve and the centrifugal dehydration barrel of the centrifugal dehydration equipment for facilitating the removal of impurities provided by the present invention;

[0030] Figure 6 A schematic diagram of the internal structure of a centrifugal dehydration barrel of a centrifugal dehydration device for removing impurities provided by the present invention from a left side view;

[0031] Figure 7 A right side structural schematic diagram of a centrifugal dehydration barrel of a centrifugal dehydration device for facilitating removal of impurities provided by the present invention;

[0032] Figure 8 Centrifugal dehydration equipment for easy removal of impurities provided by the present invention Figure 7 A schematic diagram of the enlarged structure at A in the middle;

[0033] Fig. 9 Centrifugal dehydration equipment for easy removal of impurities provided by the present invention Figure 7 A schematic diagram of the enlarged structure at B in the middle;

[0034] Fig.10 A schematic diagram of the structure of a discharge barrel of a centrifugal dehydration device for facilitating the removal of impurities provided by the present invention;

[0035] Fig.11 A schematic structural diagram of a drying mechanism of a centrifugal dehydration device for facilitating removal of impurities provided by the present invention.

[0036] The markings in the figure are as follows:

[0037] 1. Main body support; 2. Filter tank; 3. Dehydration and impurity removal mechanism; 4. Drying mechanism; 5. First support frame; 6. Second support frame; 7. Feed filter bucket; 8. Feed inlet; 9. Drain hole; 10. Discharge bucket; 11. Discharge port; 12. External protective sleeve; 13. Centrifugal dehydration bucket; 14. Motor support; 15. First external planetary gear; 16. Sealed bearing; 17. Speed ​​reduction motor; 18. Centrifugal transmission gear; 19. Servo motor; 20. Conveying transmission shaft; 21. Screw Rotating conveyor disc; 22, motor drive shaft; 23, drive pulley; 24, driven pulley; 25, linkage belt; 26, cleaning shaft; 27, cleaning roller; 28, cleaning drive gear; 29, internal planetary gear; 30, second external planetary gear; 31, cleaning driven gear; 32, guide groove; 33, slide bar; 34, limit block; 35, arc buffer plate; 36, reset spring; 37, hot air blower; 38, first protective net; 39, conical air pipe; 40, second protective net. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0039] As described in the background technology, the device achieves cleaning of debris by setting up a protective mechanism, but due to the large processing volume during coal processing, it is necessary to continuously dehydrate the coal, and the device cannot achieve continuous dehydration of the coal, which will seriously affect the coal processing efficiency. At the same time, the device cannot achieve dehydration of the coal and cleaning of internal debris at the same time, and the device still needs to be shut down for unified processing during cleaning.

[0040] In order to solve this technical problem, the present invention provides a centrifugal dehydration device which is convenient for removing impurities and is applied to coal dehydration and drying.

[0041] Specifically, please refer to Figure 1-Figure 5 The centrifugal dehydration device for removing impurities specifically comprises a main body support bracket 1, a water filter tank 2 is arranged inside the main body support bracket 1, a dehydration and impurity removal mechanism 3 is arranged at the upper end of the main body support bracket 1, and a drying mechanism 4 is arranged at one end of the dehydration and impurity removal mechanism 3;

[0042] The dehydration and impurity removal mechanism 3 includes a first support frame 5 and a second support frame 6 fixedly arranged on the top surface of the main body bearing bracket 1. The first support frame 5 and the second support frame 6 are symmetrically arranged on the top surface of the main body bearing bracket 1. The interior of the first support frame 5 is fixedly connected with a feed filter bucket 7, the top surface of the feed filter bucket 7 is fixedly connected with a feed port 8, and a drainage hole 9 is provided on the side of the feed port 8. The interior of the second support frame 6 is fixedly connected with a discharge bucket 10, the bottom surface of the discharge bucket 10 is fixedly connected with a discharge port 11, and the surface of the feed filter bucket 7 is fixedly connected with an external protective sleeve 12, and the end of the external protective sleeve 12 away from the feed filter bucket 7 is fixedly connected to a side of the discharge bucket 10 close to the feed filter bucket 7.

[0043] The centrifugal dehydration equipment provided by the present invention is convenient for removing impurities, and a dehydration and impurity removal mechanism 3 is provided at the same time. The cleaning shaft 26 drives the cleaning roller 27 to rotate in the middle of the external protective sleeve 12 and the centrifugal dehydration barrel 13, which can avoid the shutdown of the device due to blockage while the centrifugal dehydration barrel 13 is dehydrating, thereby effectively improving the stability of the device and avoiding blockage of the device due to accumulation of debris.

[0044] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0045] Embodiment 1:

[0046] Please refer to Figure 2-Figure 10 A centrifugal dehydration device for removing impurities, comprising a main body support bracket 1, a water filter tank 2 is arranged inside the main body support bracket 1, a dehydration and impurity removal mechanism 3 is arranged at the upper end of the main body support bracket 1, and a drying mechanism 4 is arranged at one end of the dehydration and impurity removal mechanism 3;

[0047] The dehydration and impurity removal mechanism 3 includes a first support frame 5 and a second support frame 6 fixedly arranged on the top surface of the main body bearing bracket 1. The first support frame 5 and the second support frame 6 are symmetrically arranged on the top surface of the main body bearing bracket 1. The interior of the first support frame 5 is fixedly connected with a feed filter bucket 7, the top surface of the feed filter bucket 7 is fixedly connected with a feed port 8, and a drainage hole 9 is provided on the side of the feed port 8. The interior of the second support frame 6 is fixedly connected with a discharge bucket 10, the bottom surface of the discharge bucket 10 is fixedly connected with a discharge port 11, and the surface of the feed filter bucket 7 is fixedly connected with an external protective sleeve 12, and the end of the external protective sleeve 12 away from the feed filter bucket 7 is fixedly connected to a side of the discharge bucket 10 close to the feed filter bucket 7.

[0048] Specifically, the feed water filter barrel 7 and the discharge barrel 10 are connected by an external protective sleeve 12. The side of the feed water filter barrel 7 away from the discharge barrel 10 is an inclined surface. The feed water filter barrel 7 is wider at the top and narrower at the bottom. The bottom of the external protective sleeve 12 is in an open state.

[0049] Specifically, a centrifugal dehydration barrel 13 is arranged inside the external protective sleeve 12, and sealed bearings 16 are arranged at the connection points at both ends of the external protective sleeve 12 and the centrifugal dehydration barrel 13. The outer wall of the centrifugal dehydration barrel 13 is fixedly connected to a first external planetary gear 15, and the top surface of the main body supporting bracket 1 is fixedly connected to a motor bracket 14. The transmission end of the motor bracket 14 is rotatably connected to a centrifugal transmission gear 18, and the sealed bearing 16 is meshed with the centrifugal transmission gear 18. The water filter 2 is arranged at the bottom end of the external protective sleeve 12 and the centrifugal dehydration barrel 13.

[0050] Specifically, a servo motor 19 is fixedly connected to the top surface of the main body supporting bracket 1, and the driving end of the servo motor 19 is rotatably connected to the motor drive shaft 22. A conveying drive shaft 20 is arranged inside the centrifugal dehydration barrel 13, and the two ends of the conveying drive shaft 20 are respectively rotatably connected to the inside of the feed filter barrel 7 and the discharge barrel 10. A spiral conveyor disk 21 is fixedly connected to the surface of the conveying drive shaft 20, a driving pulley 23 is fixedly connected to the surface of the motor drive shaft 22, and a driven pulley 24 is fixedly connected to the surface of the conveying drive shaft 20. A linkage belt 25 is connected to the surface of the driven pulley 24 and the driving pulley 23.

[0051] Specifically, the inner diameter of the outer protective sleeve 12 and the end of the centrifugal dehydration barrel 13 close to the feed filter barrel 7 is smaller than that of the end close to the feed filter barrel 7, the spiral conveyor plate 21 is in contact with the inner wall of the centrifugal dehydration barrel 13, and the spiral conveyor plate 21 is rotatably arranged inside the centrifugal dehydration barrel 13.

[0052] Specifically, a cleaning transmission gear 28 is fixedly connected to the surface of the motor drive shaft 22, and an inner planetary gear 29 is rotatably connected to a side of the feed filter bucket 7 close to the external protective sleeve 12. The inner planetary gear 29 is arranged on the outer ring of the external protective sleeve 12, and a second outer planetary gear 30 is fixedly connected to the surface of the inner planetary gear 29, and the second outer planetary gear 30 is meshed with the cleaning transmission gear 28.

[0053] Specifically, the outer protective sleeve 12 is internally rotatably connected to a cleaning shaft 26, and the surface of the cleaning shaft 26 is fixedly connected to a cleaning roller 27, which is arranged between the outer protective sleeve 12 and the centrifugal dehydration barrel 13, and the cleaning roller 27 is in close contact with the surface of the centrifugal dehydration barrel 13, and the inner planetary gear 29 is fixedly connected to one end thereof close to the feed filter barrel 7 with a cleaning driven gear 31, and the cleaning driven gear 31 is meshed with the inner planetary gear 29.

[0054] With the above structural design, when the device is used, the cleaned coal is first added to the inside of the feed water filter bucket 7 through the feed port 8, and the water accumulated on the surface of the coal after entering the feed water filter bucket 7 can be drained out through the drainage hole 9;

[0055] At the same time, the reduction motor 17 and the servo motor 19 are turned on, the reduction motor 17 drives the centrifugal transmission gear 18 to rotate, and the centrifugal transmission gear 18 drives the centrifugal dehydration bucket 13 to rotate inside the external protective sleeve 12 through the first external planetary gear 15. At the same time, the servo motor 19 drives the conveying transmission shaft 20 to drive the transmission pulley 23 to rotate, and the transmission pulley 23 drives the driven pulley 24 to rotate through the linkage belt 25. The driven pulley 24 drives the spiral conveyor plate 21 to rotate through the conveying transmission shaft 20. When the spiral conveyor plate 21 rotates, the coal is transported to the inside of the centrifugal dehydration bucket 13. Since the centrifugal dehydration bucket 13 itself is in a rotating state, the coal entering the centrifugal dehydration bucket 13 generates centrifugal force through the rotation of the centrifugal dehydration bucket 13, so that the coal is tightly attached to the inner wall of the centrifugal dehydration bucket 13. At the same time, the spiral conveyor plate 21 can continuously transport the coal forward while rotating, and the coal is transported to the inside of the discharge bucket 10 through the spiral conveyor plate 21;

[0056] After the coal enters the discharge barrel 10, it has a certain impact force due to the centrifugal dewatering barrel 13. After entering the discharge barrel 10, the coal hits the arc buffer plate 35. At this time, the arc buffer plate 35 pushes the slide bar 33 to slide inside the discharge barrel 10. At the same time, the arc buffer plate 35 cooperates with the discharge barrel 10 to compress the reset spring 36, thereby effectively reducing the impact force of the coal. After completion, the arc buffer plate 35 is reset by the push of the reset spring 36.

[0057] When the motor drive shaft 22 rotates, it drives the second external planetary gear 30 to rotate. The rotation of the second external planetary gear 30 drives the internal planetary gear 29 to rotate on the surface of the feed filter bucket 7. The rotation of the internal planetary gear 29 drives the cleaning drive gear 28 to rotate. The cleaning drive gear 28 drives the cleaning roller 27 to rotate through the cleaning shaft 26. Since the cleaning roller 27 is in close contact with the inner wall of the centrifugal dehydration bucket 13, the centrifugal dehydration bucket 13 can clean its own surface while rotating. At the same time, the rotation of the cleaning roller 27 can further clean the interior of the external protective sleeve 12 and the centrifugal dehydration bucket 13, thereby avoiding blockage of the external protective sleeve 12 and the interior of the centrifugal dehydration bucket 13 due to accumulation of debris.

[0058] Embodiment 2:

[0059] The centrifugal dehydration device for removing impurities provided in Example 1 is further optimized, specifically, Figure 9-11As shown, a guide groove 32 is provided on the surface of the discharge barrel 10, and a slide rod 33 is slidably connected inside the discharge barrel 10. One end of the slide rod 33 is fixedly connected to a limit block 34, and the end of the slide rod 33 away from the limit block 34 is fixedly connected to an arc-shaped buffer plate 35. The arc-shaped buffer plate 35 is arranged inside the discharge barrel 10 and the arc-shaped buffer plate 35 is slidably connected to the inside of the guide groove 32 through a cross bar. A return spring 36 is sleeved on the surface of the slide rod 33, and the two ends of the return spring 36 are respectively tightly attached to the discharge barrel 10 and the arc-shaped buffer plate 35.

[0060] Specifically, a hot air blower 37 is fixedly connected to a side of the discharge barrel 10 away from the external protective sleeve 12, and the hot air blower 37 is connected to the discharge barrel 10. A first protective net 38 is fixedly connected to the connection between the hot air blower 37 and the discharge barrel 10. A conical air pipe 39 is fixedly connected to the inside of the discharge barrel 10, and the conical air pipe 39 is connected to the hot air blower 37 and the conical air pipe 39 is sleeved on the outside of the conveying drive shaft 20. The end of the conical air pipe 39 away from the hot air blower 37 is fixedly connected to a second protective net 40, and the second protective net 40 is sleeved on the surface of the conveying drive shaft 20.

[0061] Through the above-mentioned structural design, the hot air blower 37 is turned on while the coal is being dehydrated, and the hot air blower 37 transmits hot air to the inside of the centrifugal dehydration barrel 13 through the conical air pipe 39. After the hot air enters the inside of the centrifugal dehydration barrel 13, the moisture on the surface of the coal can be evaporated, thereby enabling the auxiliary dehydration and impurity removal mechanism 3 to dehydrate the coal.

Claims

1. A centrifugal dehydration device for removing impurities, characterized in that; It comprises a main body support bracket (1), a water filter tank (2) is arranged inside the main body support bracket (1), a dehydration and impurity removal mechanism (3) is arranged at the upper end of the main body support bracket (1), and a drying mechanism (4) is arranged at one end of the dehydration and impurity removal mechanism (3); The dehydration and impurity removal mechanism (3) comprises a first support frame (5) and a second support frame (6) fixedly arranged on the top surface of the main body support frame (1); the first support frame (5) and the second support frame (6) are symmetrically arranged on the top surface of the main body support frame (1); the first support frame (5) is fixedly connected to a feed filter bucket (7) inside; the top surface of the feed filter bucket (7) is fixedly connected to a feed port (8); a drainage hole (9) is provided on the side of the feed port (8); the second support frame (6) is fixedly connected to a discharge bucket (10) inside; the bottom surface of the discharge bucket (10) is fixedly connected to a discharge port (11); the surface of the feed filter bucket (7) is fixedly connected to an external protective sleeve (12); the end of the external protective sleeve (12) away from the feed filter bucket (7) is fixedly connected to a side of the discharge bucket (10) close to the feed filter bucket (7).

2. The centrifugal dehydration device for removing impurities according to claim 1, characterized in that: The feed water filter barrel (7) and the discharge barrel (10) are connected via an external protective sleeve (12); the side of the feed water filter barrel (7) away from the discharge barrel (10) is an inclined surface; the feed water filter barrel (7) is generally wide at the top and narrow at the bottom; and the bottom surface of the external protective sleeve (12) is in an open state.

3. The centrifugal dehydration device for removing impurities according to claim 2, characterized in that: A centrifugal dehydration barrel (13) is arranged inside the external protective sleeve (12), and sealing bearings (16) are arranged at the connection points between the two ends of the external protective sleeve (12) and the centrifugal dehydration barrel (13). A first external-tooth planetary gear (15) is fixedly connected to the outer wall of the centrifugal dehydration barrel (13), and a motor bracket (14) is fixedly connected to the top surface of the main body support bracket (1), and a centrifugal transmission gear (18) is rotatably connected to the transmission end of the motor bracket (14). The sealing bearing (16) is meshed with the centrifugal transmission gear (18), and the water filter tank (2) is arranged at the bottom ends of the external protective sleeve (12) and the centrifugal dehydration barrel (13).

4. The centrifugal dehydration device for removing impurities according to claim 3, characterized in that: The top surface of the main body support bracket (1) is fixedly connected to a servo motor (19), the driving end of the servo motor (19) is rotatably connected to a motor drive shaft (22), a conveying drive shaft (20) is arranged inside the centrifugal dewatering barrel (13), the two ends of the conveying drive shaft (20) are respectively rotatably connected to the inside of a feed water filter barrel (7) and a discharge barrel (10), the surface of the conveying drive shaft (20) is fixedly connected to a spiral conveying disk (21), the surface of the motor drive shaft (22) is fixedly connected to a driving pulley (23), the surface of the conveying drive shaft (20) is fixedly connected to a driven pulley (24), and the driven pulley (24) and the surface of the driving pulley (23) are connected in driving manner by a linkage belt (25).

5. The centrifugal dehydration device for removing impurities according to claim 4, characterized in that: The inner diameter of the outer protective sleeve (12) and the end of the centrifugal dehydration barrel (13) close to the feed water filter barrel (7) is smaller than the inner diameter of the end close to the feed water filter barrel (7), the spiral conveyor plate (21) is in contact with the inner wall of the centrifugal dehydration barrel (13), and the spiral conveyor plate (21) is rotatably arranged inside the centrifugal dehydration barrel (13).

6. The centrifugal dehydration device for removing impurities according to claim 5, characterized in that: A cleaning transmission gear (28) is fixedly connected to the surface of the motor drive shaft (22); a surface of the feed filter bucket (7) close to the external protective sleeve (12) is rotatably connected to an internally toothed planetary gear (29); the internally toothed planetary gear (29) is arranged on the outer ring of the external protective sleeve (12); a second externally toothed planetary gear (30) is fixedly connected to the surface of the internally toothed planetary gear (29); and the second externally toothed planetary gear (30) is meshed with the cleaning transmission gear (28).

7. The centrifugal dehydration device for removing impurities according to claim 6, characterized in that: The outer protective sleeve (12) is rotatably connected to a cleaning shaft (26) inside, and a cleaning roller (27) is fixedly connected to the surface of the cleaning shaft (26). The cleaning roller (27) is arranged between the outer protective sleeve (12) and the centrifugal dehydration barrel (13), and the cleaning roller (27) is in close contact with the surface of the centrifugal dehydration barrel (13). The inner planetary gear (29) is fixedly connected to a cleaning driven gear (31) at one end close to the feed filter barrel (7), and the cleaning driven gear (31) is meshed with the inner planetary gear (29).

8. The centrifugal dehydration device for removing impurities according to claim 7, characterized in that: A guide groove (32) is provided on the surface of the discharge barrel (10), and a slide rod (33) is slidably connected inside the discharge barrel (10), one end of the slide rod (33) is fixedly connected to a limit block (34), and one end of the slide rod (33) away from the limit block (34) is fixedly connected to an arc-shaped buffer plate (35), the arc-shaped buffer plate (35) is arranged inside the discharge barrel (10) and the arc-shaped buffer plate (35) is slidably connected to the inside of the guide groove (32) through a cross bar, and a return spring (36) is sleeved on the surface of the slide rod (33), and the two ends of the return spring (36) are respectively tightly attached to the discharge barrel (10) and the arc-shaped buffer plate (35).

9. The centrifugal dehydration device for removing impurities according to claim 8, characterized in that: A hot air blower (37) is fixedly connected to a side of the discharge barrel (10) away from the external protective sleeve (12), the hot air blower (37) is connected to the discharge barrel (10), a first protective net (38) is fixedly connected to the connection between the hot air blower (37) and the discharge barrel (10), a conical air pipe (39) is fixedly connected to the inside of the discharge barrel (10), the conical air pipe (39) is connected to the hot air blower (37) and the conical air pipe (39) is sleeved on the outside of the conveying transmission shaft (20), and a second protective net (40) is fixedly connected to an end of the conical air pipe (39) away from the hot air blower (37), and the second protective net (40) is sleeved on the surface of the conveying transmission shaft (20).

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